HP
HP0-J73 · Question #30
HP0-J73 Question #30: Real Exam Question with Answer & Explanation
The correct answer is D: To ensure performance, additional system cache is used.. When sizing for HP 3PAR Snapshots, additional system cache must be allocated to maintain performance during snapshot operations.
Basic Design and Sizing of HP Storage Solutions
Question
What needs to be considered when sizing a solution which will utilize HP 3PAR Snapshots?
Options
- AAdditional host ports will be required
- BSnapshots need to be written at 64k blocks
- CBackend IOs will increase
- DTo ensure performance, additional system cache is used.
Explanation
When sizing for HP 3PAR Snapshots, additional system cache must be allocated to maintain performance during snapshot operations.
Common mistakes.
- A. Snapshot functionality is managed entirely by the array controller internally and does not require additional host-facing ports.
- B. HP 3PAR does not impose a fixed 64K block size requirement for snapshot writes; block management is handled by the array's internal algorithms.
- C. While copy-on-write does generate some additional I/O internally, the primary and critical sizing consideration for snapshots is cache consumption, not planning for generic backend I/O increases.
Concept tested. HP 3PAR Snapshot cache sizing requirements
Topics
#HP 3PAR snapshots#sizing considerations#system cache#backend IO
Community Discussion
No community discussion yet for this question.